Date: Mon, 30 Apr 2001 14:45:21 -0400 From: "Red Aero" <redaero93nopsamail.com> Subject: Re: Air temperature issues using stock air box vs. K&N cone
Dan, I subscribe to your theory of the hot engine air offsetting any gain from the open filter. Some will tell you they gain 20 -30 HP just by adding the K&N cone. I've opted for the K&N drop in replacement for the original filter element in my '88 900T & '93 9k Aero. The 9000 guys like to use the open K&N cone but stuff it into the original location inside the drivers side fender, a reasonable compromise. I never found a perfect way to accomplish it in my 900T. The room would be better used for a larger intercooler or a charge cooler (air to water) located where the battery is and relocating the battery to the trunk. Just my $.02, Red "Dan Schleifer" <stevenopsamcom> wrote in message news:3AED7272.7845B1FBnopsamcom... > So, I was about to order the K&N cone filter kit for my 90' 900spg when > I started thinking about air temperature. The current, slightly > convoluted, airbox takes air from outside the engine bay right where the > APC unit is located. From a temperature perspective, this is great > because it is relativly shielded from engine bay heat, but from a flow > perspective doesn't work very well. There is no clear path for fresh > air to enter above the fender well (besides the gaps around the > headlight), and once it does enter that area, it has to go through all > that piping just to get to the air mass meter. However, if I were to > use the K&N cone right off of the air mass meter, it seems like I would > be getting much warmer air. I know that this is bad for combustion > (even with the intercooler) and may also effect the air mass meter's > heat filiment. > > I was considering taking the air intake from the turbo unit and > rerouting it to the other side of the engine (by the battery) and down > underneath the car where a K&N filter could suck cool air from under the > car. It seems like this would be a shorter route for air than the stock > airbox, with roughly the same number of turns, but I would be getting > cold air, and could also use one of those little air scoops under the > car to help force air into the system. > > Does anyone have any thoughts on airflow/temperature. Can you think of > a reason not to reroute the air intake down past the battery? Has > anyone had ill-effects from the heat issue of taking air from the engine > bay? Am I nuts? > > Thanks, and sorry for the long-winded post (monday morning, first cup of > coffee down, mind scattered...). -Dan > > > > -- > Dan Schleifer | 804.242.5088 | dannopsamis.cc > Fenris Security
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